You can open the static timing
report and the NCD file for further timing analysis in Timing Analyzer.
If a placed and routed design has met all of your timing constraints,
then you can proceed by creating configuration data. However, if you
identify problems in the timing reports, you can also redesign the
logic paths to use fewer levels of logic, tag the paths for a specialized
routing resources, move to a faster device, or allocate more time
for the paths.

To Analyze Post-Place & Route Static Timing

In the Design panel, select Implementation from the Design View drop-down list.

In the Hierarchy pane, select the top module .

In the Processes pane, expand Implement Design, and expand Place & Route.